Sleeve holding device



Aug. 241, 1948. CQRLEY 2,447,493

SLEEVE HOLDING DEVICE Filed Au .29, 1,945

PEG, 5

. ZI W ERNEST L. ,CORLEY Patented Aug. 24, 1948 UNITED STATES PATENTOFFICE 2,447,491 SLEEVE HOLDING DEVICE Ernest L. Corley, Charleston, C.4 Application August 2 9, 945, Serial Nb. 613,404

(Granted under the act of March 3, 1883. as amended April 30, 1928; 3700. G. 757) 1 Claim.

This invention relates to a work holding clamp. Further it relates to awork holding clamp comprising two members which operate in opposition toeach other, thereby clamping the work in position. Specifically theinvention relates to a work holding clamp adapted to position a metallicsleeve in a door frame.

One object of the invention is to provide a clamp which will position a,dog bearing sleeve so that the sleeve may be welded to a door frame orother structure. Another object of the invention is to provide aclamping device which after havin been set for a particular size sleeveis readily operable to position in succession, a number of sleeves ofthe same size. A further object of the invention is to provide a workpositioning clamp which is simple in operation, which is easilymanufactured and is of strong and durable construction.

In the industry it has been customary to provide the dog bearing sleevefor standard size doors by the drop forging process. Such sleeves ingeneral have positioning lugs on their exterior face so that they mayreadily be welded without use of a clamping device. But in ship andother construction, it frequently happens that the doors or covers to beequipped with dog and lug closing devices are not of standard dimensionsand bearing sleeves are not readily available for them. In such cases itis customary to manufacture and place the bearing sleeves in position asthe ship or other construction is being carried forward. In order tofacilitate the placing of straight sided sleeves in such cases, theinventor has provided the clamping device herein described and claimed.

In order to have a clearer conception of one embodiment of theinvention, reference is made to the drawings in which:

Figure 1 is a vertical, sectional view through the device, partly insection and partly in elevation.

Figure 2 is a plan view of the same in elevation.

In Figure 1 the clamping device is shown positioning a dog bearingsleeve in a door frame. In this figure, It] represents a sleeve which isprovided with an end plate I The latter is attached to sleeve II by anyconventional means such as welding. Plate II is provided with a threadedhole II at its center in which threaded bolt I2 fits. Bolt [2 isprovided with an operating handwheel I3 and lock-nut M which looks thebolt in position. Upon the other end of bolt I2 is atdle I8 is providedwith threaded stud H! which fits into plate H) at the center thereof.From the other end of spindle l8 extends threaded stud 20, which isprovided with nut 2|. tends freely through tripod plate 24 which isprovided with three threaded bosses 25. Into these bosses fit bolts 26.Bolts 26 are provided with lock-nuts 21 which hold them in adjustedposition. Tripod plate 24 is cut away as shown at 28 in Figure 2.Bearing sleeve 22 is positioned on spindle I8, is centered thereby andheld in position in door frame 23 by means of this clamping device.

In operation, bearing sleeve 22 is placed on spindle l8. Bolt I2 is thenadjusted so that when sleeve Ill is brought up against the face of doorframe 23, sleeve 22 will be positioned approximately on its transversemedian line. Lock nut I4 is then turned to fix bolt l2 in this position.Nut 2| is removed from stud 2B and plate 24 is placed around stud 20 andis brought into contact with the end of bearing sleeve 22. In order todo this, it may be necessary to back ofl? bolts 26. Then lock-nut 2| isturned on stud 20 until it firmly presses plate 24 against the end ofsleeve 22. Bolts 26 are now turned until they press against door frame23 and are locked in position by lock-nuts 21. Sleeve 22 is nowtack-welded to door frame 23 in the cut-out areas of plate 24. The clamphas now been adjusted so that it may readily fit several sleeves of thesame dimensions. All that is necessary to do is to back off nut 2| fromstud 20, remove the assembly from welded sleeve 22, place another sleeveon spindle l8 and position it in the next hole by placing the tripodplate over stud 20 and turning lock-nut 2| firmly against plate 24 afterthe sleeve has been so positioned.

While the embodiment of the clamping device shown herein has been drawnto a clamp intended for placing cylindrical, dog bearing sleeves inposition, it is obvious that the device could be used for positioningother shaped elements in position for welding and it is not desired tobe limited to a clamp for merely placing cylindrical door sleeves forwelding. Such modifications are within the scope of this presentinvention and are included therein.

This invention may be made or used by or for the Government of theUnited States for governmental purposes without the payment to me of anyroyalties thereon or therefor.

What I claim is:

An adjustable clamping device adapted to hold a cylindrical sleeve inposition for welding in an Stud 20 exon said projection, means foradjustablyepositibning said closing plate with respect to saidemetalplate, and means mounted on said'projection for securing said closingplate relative to said metal plate and said movable p1ate,whereby saidsleeve is securely supported on said spindle and between said movableplate and said closing plate.

ERNEST L. CORLEY.

'REF-ERENGE-S GITED The following references "are of record in the,Mfile of this patent:

' M UNITED STATES PATENTS Number Name Date 1090;920 *"Knight Mar. 24,1914 -'1 ,940, 9'10 Hickey Dec. 26, 1933

